iqos tar levels compared to cigarettes Two Different Heated Tobacco Products vs. Cigarettes: Comparison of Nicotine Delivery and Subjective Effects in Experienced Users Cigarette Tar | PMI Science

If any irritation or discomfort occurs, reduce use or stop altogether

Impact of Device Specifications and User Behavior Device specifications and user behavior greatly impact how much nicotine is absorbed from e-cigarettes: Device Specifications: Power Output (Wattage) : Higher wattage devices produce more vapor, potentially increasing nicotine delivery

Exposure to high levels of e-vapor caused DNA damage, cell death (both apoptotic and necrotic), and significantly elevated ROS levels in HUVECs [67], [110]

Food grade flavours are added to make the experience more enjoyable, but they do not increase the effects of nicotine